Iodide-selective electrodes based on the silver(I) complex of a novel N-thiocarbamoylimine-dithioether derivative

✍ Scribed by Fatima Z. El Aamrani; Ana Sastre; Manuel Aguilar; Lothar Beyer; Antonio Florido

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 545 KB
• Volume: 329
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(96)00115-8

✦ Synopsis

Poly(viny1 chloride) membrane ion-selective electrodes (ISEs) based on the silver complex of a novel thiocarbamoyliminedithioether synthesized in our laboratories as an anion carrier have been developed. An anti-Hofmeister behaviour was obtained, and electrodes responded preferentially to iodide. The response of tire electrodes was Nernstian for iodide and sub-Nemstian for tbiocyanate and bromide ions. Detection limits around 7.5 x lo-'M and response times of about 10 s were obtained for the iodide response of these electrodes. The use of metal-complexes as ionophores in the development of anionselective electrodes and a comparison among different iodide-responsive membranes are discussed.